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GeForce GTX 1660 Ti vs Radeon RX 6600 XT

Intro

The GeForce GTX 1660 Ti makes use of a 12 nm design. nVidia has clocked the core speed at 1500 MHz. The GDDR6 RAM works at a speed of 1500 MHz on this model. It features 1536 SPUs as well as 96 TAUs and 48 ROPs.

Compare those specifications to the Radeon RX 6600 XT, which has core clock speeds of 1968 MHz on the GPU, and 2000 MHz on the 8192 MB of GDDR6 memory. It features 2048 SPUs as well as 128 Texture Address Units and 64 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 1660 Ti 120 Watts
Radeon RX 6600 XT 160 Watts
Difference: 40 Watts (33%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 1660 Ti should perform just a bit faster than the Radeon RX 6600 XT overall. (explain)

GeForce GTX 1660 Ti 294912 MB/sec
Radeon RX 6600 XT 262144 MB/sec
Difference: 32768 (13%)

Texel Rate

The Radeon RX 6600 XT will be quite a bit (more or less 75%) more effective at AF than the GeForce GTX 1660 Ti. (explain)

Radeon RX 6600 XT 251904 Mtexels/sec
GeForce GTX 1660 Ti 144000 Mtexels/sec
Difference: 107904 (75%)

Pixel Rate

The Radeon RX 6600 XT will be much (about 75%) better at anti-aliasing than the GeForce GTX 1660 Ti, and also should be capable of handling higher screen resolutions without losing too much performance. (explain)

Radeon RX 6600 XT 125952 Mpixels/sec
GeForce GTX 1660 Ti 72000 Mpixels/sec
Difference: 53952 (75%)

Please note that the above 'benchmarks' are all just theoretical - the results were calculated based on the card's specifications, and real-world performance may (and probably will) vary at least a bit.

Price Comparison

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GeForce GTX 1660 Ti

Amazon.com

Check prices at:

Radeon RX 6600 XT

Amazon.com

Check prices at:

Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

Specifications

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Model GeForce GTX 1660 Ti Radeon RX 6600 XT
Manufacturer nVidia AMD
Year February 2019 August 2021
Code Name TU116-400-A1 Navi 23 XT
Memory 6144 MB 8192 MB
Core Speed 1500 MHz 1968 MHz
Memory Speed 1500 GB/s 2000 GB/s
Power (Max TDP) 120 watts 160 watts
Bandwidth 294912 MB/sec 262144 MB/sec
Texel Rate 144000 Mtexels/sec 251904 Mtexels/sec
Pixel Rate 72000 Mpixels/sec 125952 Mpixels/sec
Unified Shaders 1536 2048
Texture Mapping Units 96 128
Render Output Units 48 64
Bus Type GDDR6 GDDR6
Bus Width 192-bit 128-bit
Fab Process 12 nm 7 nm
Transistors 6600 million 11060 million
Bus PCIe 3.0 x16 PCIe 4.0 x16
DirectX Version DirectX 12.0 DirectX 12
OpenGL Version OpenGL 4.6 OpenGL 4.6

Memory Bandwidth: Memory bandwidth is the max amount of data (counted in megabytes per second) that can be moved past the external memory interface in one second. It is worked out by multiplying the bus width by the speed of its memory. If it uses DDR type memory, the result should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed per second. This is calculated by multiplying the total texture units of the card by the core clock speed of the chip. The better the texel rate, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip could possibly record to its local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate is also dependant on lots of other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.

Display Prices

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GeForce GTX 1660 Ti

Amazon.com

Check prices at:

Radeon RX 6600 XT

Amazon.com

Check prices at:

Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

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